Class ListChanges

code/src/java/pcgen/rules/context/ListChanges.java:32–185

import pcgen.cdom.reference.ReferenceUtilities;

class ListChanges<T extends CDOMObject> implements AssociatedChanges<CDOMReference<T>>
{
	private final String tokenName;
	private final CDOMObject positive;
	private final CDOMObject negative;
	private final CDOMReference<? extends CDOMList<T>> list;
	private final boolean clear;

	public ListChanges(String token, CDOMObject added, CDOMObject removed, CDOMReference<? extends CDOMList<T>> listref,
		boolean globallyCleared)
	{
		tokenName = token;
		positive = added;
		negative = removed;
		list = listref;
		clear = globallyCleared;
	}

	@Override
	public boolean includesGlobalClear()
	{
		return clear;
	}

	public boolean isEmpty()
	{
		/*
		 * TODO This lies because it doesn't analyze tokenName
		 */
		return !clear && !hasAddedItems() && !hasRemovedItems();
	}

	@Override
	public Collection<CDOMReference<T>> getAdded()
	{
		TreeSet<CDOMReference<T>> set = new TreeSet<>(ReferenceUtilities.REFERENCE_SORTER);
		Collection<CDOMReference<T>> listMods = positive.getListMods(list);
		if (listMods != null)
		{
			for (CDOMReference<T> ref : listMods)
			{
				for (AssociatedPrereqObject assoc : positive.getListAssociations(list, ref))
				{
					if (tokenName.equals(assoc.getAssociation(AssociationKey.TOKEN)))
					{
						set.add(ref);
					}
				}
			}
		}
		return set;
	}

	public boolean hasAddedItems()
	{
		/*
		 * TODO This lies because it doesn't analyze tokenName
		 */